The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1999
Filed:
Feb. 28, 1997
Applicant:
Inventors:
Robert Anders Johnson, San Jose, CA (US);
Richard A Carberry, Los Gatos, CA (US);
Scott K Roberts, Auburn, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518905 ; 36518902 ; 365193 ; 365194 ; 365210 ; 36523002 ; 36523008 ; 365233 ;
Abstract
Dynamic latches for writing to a synchronous RAM are controlled by a clock signal and a delay circuit so that the dynamic latches will not stay in a latched state for more than a selected time interval regardless of the clock signal. One delay circuit limits the length of a write enable signal. Another delay circuit responds to the write enable signal and after a delay returns the address and data latches to their transparent states.